• Journal of Construction Engineering and Project Management
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• 제6권1호
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• pp.11-19
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• 2016

Most of the Indian contractors are not well equipped to handle the growing demand of infrastructure development; hence construction projects frequently run in to time and cost overruns, disputes and quality issues. This study aims to improve the construction industry in India by implementing lean principles to eliminate non-value adding activities (wastes). The purpose of this study is to 1) identify the wastes and their sources affecting the construction process, and 2) to identify problems and document lessons by applying a Last Planner System (LPS) to a sample project. First, the researchers identified that Delays, Rework, and Interruptions were the most critical wastes affecting the construction process and Poor management control, Poor Planning and Shortage of Resources were the major sources of the above mentioned wastes. Second, the researchers report the Percent of Planned Complete (PPC) analysis results and experienced problems after implementation of LPS at the sample project. It was observed that much more improvement could have been achieved if there was consensus between the owners and the contractor on the implementation of the LPS in its entirety. Some of the problems experienced in the implementation of the LPS like lack of scheduling, resource and material shortage were found to be similar to those in developed countries.

• 센서학회지
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• 제17권6호
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• pp.406-413
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• 2008

We have been implemented simple statistical pattern recognition methods for harmful gases classification using gas sensors array fabricated by MEMS (Micro Electro Mechanical System) technology. The performance of pattern recognition method as a gas classifier is highly dependent on the choice of pre-processing techniques for sensor and sensors array signals and optimal classification algorithms among the various classification techniques. We carried out pre-processing for each sensor's signal as well as sensors array signals to extract features for each gas. We adapted simple statistical pattern recognition algorithms, which were PCA (Principal Component Analysis) for visualization of patterns clustering and MLR (Multi-Linear Regression) for real-time system implementation, to classify harmful gases. Experimental results of adapted pattern recognition methods with pre-processing techniques have been shown good clustering performance and expected easy implementation for real-time sensing system.

• 한국정보통신학회논문지
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• 제11권10호
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• pp.1807-1813
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• 2007

본 연구는 경영 전략, 조직, 프로세스 분석 재설계 그리고, 정보시스템 구축방안 등과 연계하여 ISP(정보전략계획) 방법론에서 ISP의 이행가능성과 효율성 측면과 관련된 실증분석을 실시하였다. 이를 통해 ISP와 ERP를 중심으로 그 범위 및 추진방안을 상호비교하고 이를 통해 효율적인 프로세스 구축 및 재설계 방안으로서 정보시스템 담당자와 의사결정자로 하여금 IP전략 수립과 프로세스 재설계 리엔지니어링 추진에 따른 체계적인 접근방법에 대한 바람직한 방향을 도출한다. 즉 ISP와 ERP의 공통점과 차이점을 바탕으로 이를 계획(Plan)과 실행(Do)의 과정으로 연계함으로써 기업의 업무프로세스를 개선하고, 정보시스템의 중장기 전략의 수립과 BPR을 함께 추진하는 것이 바람직 한 방안임을 고려하여 그 대안으로 연계모델을 제시할 필요가 있음을 알 수 있었다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제15권8호
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• pp.2732-2748
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• 2021

In post-COVID-19 pandemic era, students' learning effects and experience may sharply decrease when teaching is transferred from offline to online. Several tools suitable for online teaching have been developed to guarantee and promote students' learning effects. However, they cannot fully consider teacher-student interaction in online teaching. To figure out this issue, this paper proposes integrated media platform-based virtual office hours implementation for online teaching. Specifically, an integrated media platform (IMP) is first constructed. Then, virtual office hours (VOH) is implemented based on the IMP, aiming at increasing student-teacher interactions. For evaluating the effectiveness of this scheme, 140 undergraduate students using IMP are divided into one control group and three experimental groups that respectively contain text, voice and video modes. The experiment results indicate that applying VOH in the IMP can improve students' online presence and test scores. Furthermore, students' participating modes during VOH implementation can largely affect their degree of presence, which can be well classified by using principal component analysis. The implication of this work is that IMP-based VOH is an effective and sustainable tool to be continuously implemented even when the COVID-19 pandemic period ends.

• 한국학교ㆍ지역보건교육학회지
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• 제19권3호
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• pp.41-52
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• 2018

Objectives: This cross-sectional study aimed to identify the significant factors that influence small and medium-sized business workers when they carry out low sodium diet. Methods: The data were collected by conducting a survey on 161 individuals in small and medium sized businesses who had not been diagnosed with hypertension, in Gyeonggi province. The survey tool measured their knowledge in carrying out low sodium diet and how much support they had been given from their family. The data were analyzed by descriptive statistics and multiple regression analysis. Results: Family support affected their implementation of the low sodium diet (t=2.981, p=.003). Similarly, the result accounted for 27.2% ($R^2=.272$) in the regression model. Conclusion: this statistical results suggest that there is a profound need of various nursing intervention programs to enhance family support and to improve their awareness of the importance of implementing low sodium diet in order to prevent hypertension in small and medium-sized business workers.

• 전기전자학회논문지
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• 제23권3호
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• pp.978-983
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• 2019

자율주행, AI의 시대가 도래함에 따라 카메라를 통하여 물체를 정확히 인식 및 판단하는 것이 중요해졌다. 특히 카메라를 이용하여 물체를 인식하는 방법은 다른 여러 방법들에 비하여 시각적으로 많은 양의 정보를 얻을 수 있기 때문에 정확한 영상을 추출하기 위하여 많은 영상 신호 처리 방법들이 연구되고 있다. 또한, 이러한 영상 신호 처리의 기능을 실제 하드웨어로 구현하기 위하여 많은 연구도 동시에 진행되고 있다. 본 논문에서는 영상 신호 처리에서 자주 사용되는 정렬 알고리즘에 대하여 동작원리 및 특징을 비교하고 성능에 대한 평가를 정리하였다. 이를 토대로 대표적인 정렬 알고리즘 중 하드웨어로 구현할 때 효율적인 알고리즘에 대하여 정의한다.

• The Journal of Asian Finance, Economics and Business
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• 제8권3호
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• pp.1095-1100
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• 2021

This study aims to analyze the factors that influence people's behavioral intentions to recycle waste and focus on people's perceptions of informal waste recycling. The low level of participation in the e-waste recycling process makes research on the factors that encourage household interactions in sorting waste or recycling waste a priority. The purpose of this study is to build a comprehensive model and examine the relationship between perceptions of informal recycling, implementation e-waste management, behavioral intention, convenience of recycling and perceived behavioral control. The framework is the Theory of Planned Behavior (TPB). The implementation variable e-waste management is used to mediate the relationship between the two constructs. Respondents in this study were cellular phone users who had changed their phones. The number of respondents in this study totaled 165, using the purposive sampling technique. Data analysis techniques in this study used PLS-SEM with WarpPLS version 6.0. The findings show that: (1) perception of informal recycling, e-waste management, and behavioral intention have a significant positive effect; (2) management of e-waste, perception behavioral control and behavioral intention have a positive effect; and (3) the implementation of e-waste management, which causes the convenience of recycling, will increase the intensity of behavior, indicating the results are rejected.

• International Journal of Computer Science & Network Security
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• 제22권2호
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• pp.311-317
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• 2022

The research is devoted to the substantiation of the system approach to the involvement of digital marketing tools as a guarantee of international business development. It is proved that digital marketing, as a type of marketing based on the use of digital technologies allows to make a profit, to promote the brand, as well as goods and services in the market. The digital marketing toolkit system is a set of elements with existing relationships that ensure the effectiveness of the entire digital marketing, which in total is greater than its individual components. The implementation of a systems approach involves the implementation of the philosophy of digital marketing in general, its functions in the form of systems analysis, formation of strategic development goals and entry and promotion in the international market, preparation and implementation of tactical and strategic development plans.The use of such digital marketing tools as: content marketing, social media marketing, Email-marketing, targeted advertising, contextual advertising, media advertising, Search Engine Optimization, affiliate programs and the company's website is analyzed in detail.

• 한국유기농업학회지
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• 제30권1호
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• pp.51-74
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• 2022

This study aimed to identify a difference in project implementation between villages that had executed rural village community activation support work successfully and those that had quit in the middle from the new endogenous development theory perspective. As a result, it was found that the main factors used for promoting to increase endogeneous development capabilities existed more in villages that executed project implementation support work successfully than in villages that had quit in the middle. Successful villages have a difference from the villages that had quit in the middle in that they have established a participatory decision making and cooperation system for stable operation even before their support work began, they have more assets for promoting community activity, residents' interaction and communal activity are becoming more active, and reciprocity-based mutual aid culture exists in many forms. In conclusion, seeing from the new endogenous development theory perspective, villages are developed under the interaction between internal and external factors, but the outcome of project implementation depends on whether village community holds its endogenous development capability to operate and develop such whole process of development. Therefore, village community activation policies need to be reinforced in the direction toward promoting to create the main factors for enhancing endogenous development capabilities.

• 국제학술발표논문집
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• The 8th International Conference on Construction Engineering and Project Management
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• pp.103-113
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• 2020

The construction industry is undergoing a digital transformation in which Building Information Modelling (BIM) is a key technology. The potential of BIM in several areas such as design optimization, time management, cost management, and asset management/facility management (AM/FM) is widely acknowledged by the AECO (Architecture, Engineering, Construction, and Operation) industry around the world. However, BIM implementation in construction projects is faced with problems such as project delay and cost overruns. The lack of identification of risks in BIM projects and standard guidelines on mitigation techniques furthers poor performance, dissatisfaction, and disputes between employers and project participants, which results in low BIM adoption rates. Therefore, the objective of this paper is to identify the potential risks in BIM implementation under the primary categories - (1) technical, (2) contractual, (3) management-related, and (4) personnel-related risks in BIM projects and present solutions to reduce, manage, and mitigate risks. To meet the objective of this paper, a survey was designed and conducted in the Hong Kong construction industry in which over 140 respondents from different disciplines, with experience in BIM projects, have participated. Based on the analysis of the survey data, the most severe and frequently occurring BIM risks and their potential mitigation strategies were identified and discussed in this paper.